Learn about SUI

You can buy SUI on major centralized exchanges (e.g. Binance, Coinbase, Kraken) and on decentralized exchanges (DEXs) on Sui. To store SUI you need a wallet that supports the Sui network: Sui Wallet (official), Ethos, Martian, and others. Never share your seed phrase or private keys. For large amounts, consider a hardware wallet if your wallet app supports it.

Move is a programming language designed for safe, resource‑oriented smart contracts. It was created for the Diem (Libra) project and prevents many common bugs: assets can’t be copied or dropped by mistake, and ownership is explicit. Sui’s version of Move adds object primitives and features tailored to Sui’s data model. This makes it easier to write secure DeFi, games, and NFT logic and to verify code formally.

On Sui, state is represented by objects: each has a unique ID and an owner (an address, another object, or “shared”). Coins, NFTs, and app state are all objects. Transactions specify which objects they read or modify. Because unrelated transactions touch different objects, the network can execute them in parallel instead of one global queue. That’s how Sui scales throughput while keeping latency and gas low.

You delegate SUI to one or more validators who run the network. In return you earn staking rewards (new SUI and a share of fees) according to the protocol’s reward schedule. You can stake via the Sui Wallet or other supported wallets and choose validators based on commission and reliability. Unstaking has a cooldown period before SUI is liquid again. Staking helps secure the network and can reduce circulating supply pressure over time.

zkLogin lets users sign into Sui apps using existing logins (e.g. Google, Twitch, Facebook) without installing a wallet or writing down a seed phrase first. Under the hood, your OAuth identity is linked to a Sui address via zero‑knowledge proofs, so the provider doesn’t learn your on‑chain address. It’s a key feature for bringing mainstream users into games and apps on Sui without the usual Web3 onboarding friction.

DeepBook is Sui’s native central limit order book (CLOB) and liquidity layer. It provides on‑chain order books for spot trading with low latency and is used by many Sui DeFi apps as the base liquidity venue. DeepBook is part of the core Sui ecosystem and aims to make Sui a strong venue for trading and market‑making with transparent, on‑chain order books.

Sui was created by Mysten Labs, a company founded in 2021 by former Meta (Diem/Novi) team members. The Sui mainnet launched in May 2023 with over 100 validators and has since grown. Validators are permissionless and anyone can run a full node. Governance and upgrades are driven by SUI stakers and the community. Mysten Labs remains a major contributor but the network is designed to be decentralized and validator‑operated.

Sui gas fees are generally low and predictable. You pay in SUI for computation and storage. The network uses a gas price that can adjust with demand, but parallel execution and efficient design keep typical fees small compared to many Ethereum L1 transactions. Sponsored transactions allow apps to pay gas for users. Move VM 2.0 and other upgrades aim to reduce gas costs further (e.g. significant percentage reductions in planned upgrades).

Planned upgrades include: Privacy—protocol‑level confidentiality with quantum‑resistant crypto and MiCA‑aligned design; Mysticeti V2—sub‑second finality; Move VM 2.0—gas reductions and performance; Ethereum bridge—trustless interoperability with Ethereum; and SuiNS and ecosystem funds. The focus is moving from infrastructure to production‑ready apps and real user adoption at scale.